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jandan.net
4h
中国组建“行星防御”团队,应对2032小行星威胁
中国正在组建一支“行星防御”团队,以应对近地小行星的威胁。这一举措是在发现一颗可能在七年后撞击地球的大型小行星之后采取的。 上周五,欧洲航天局 (ESA)将小行星2024 YR4在2032年撞击地球的概率更新为2.2%,使其成为该机构风险名单上的头号威胁。
jandan.net
7h
加拿大科学家开发出一种类似“史莱姆”的物质
加拿大圭尔夫大学的研究人员开发出一种类似“史莱姆”的物质,这种物质在受到挤压时会产生电力。研究团队在萨斯喀彻温大学的加拿大光源 (CLS)对他们的原型进行了研究,结果发现这种材料具有广泛的应用前景。
jandan.net
23h
美国重启稀土磁铁产业,挑战中国巨头
一家美国顶尖材料公司于一月中旬宣布,已开始生产稀土磁铁。这无疑是重要新闻——美国长期以来没有大型钕磁铁制造商,而钕磁铁是包括电动汽车在内的众多重要商业和国防工业的基础。然而,这条消息在美国当时嘈杂的贸易关系中几乎没有引起任何波澜。
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